diff --git a/ra-tls/README.md b/ra-tls/README.md
index 423a8d819ae7afd7dcaf014e3b943a7df0168918..5e2a9205a53498ed25f6651ffc8fb84ac2c593e0 100644
--- a/ra-tls/README.md
+++ b/ra-tls/README.md
@@ -13,6 +13,7 @@ make
 
 # Run
 ``` shell
+mkdir -p /run/rune
 cd build/bin
 ./ra-tls-server run &
 ./elv echo